Promtong, M., Namchanthra, S., Leangruksa, A., Choosri, W., Priyadumkol, J. and Vanasiri, C. 2026. ANALYSIS ON FLOW CHARACTERISTICS OF COMBINATION AIR VALVE PROTOTYPE USING CFD TECHNIQUE: A 2D-VOF MODEL. Suranaree Journal of Science and Technology. 29, 6 (Aug. 2026), 030087(1–8).